Sökning: "Permanent"

Visar resultat 1 - 5 av 853 avhandlingar innehållade ordet Permanent.

  1. 1. Permanent pilgrims : an anthropological study of the role of pilgrimage in the lives of West African Muslims in Sudan

    Författare :Christian Bawa Yamba; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Muslimska pilgrimer och pilgrimsfärder; Islam; Sudan; Västafrika;

    Sammanfattning : .... LÄS MER

  2. 2. Demagnetization Studies on Permanent Magnets : Comparing FEM Simulations with Experiments

    Författare :Stefan Sjökvist; Sandra Eriksson; Hans Bernhoff; Mårten Grabbe; Uppsala universitet; []
    Nyckelord :Permanent magnet; demagnetization; simulation; FEM; Comsol Multiphysics; VAWT; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : In a world where money often is the main controlling factor, everything that can be tends to be more and more optimized. Regarding electrical machines, developers have always had the goal to make them better. LÄS MER

  3. 3. Wave Energy Conversion : Linear Synchronous Permanent Magnet Generator

    Författare :Oskar Danielsson; Mats Leijon; Göran Engdahl; Uppsala universitet; []
    Nyckelord :Engineering physics; Finite element method; linear synchronous generator; longitudinal end effect; permanent magnet; point absorber; offshore testing; wave power; Teknisk fysik;

    Sammanfattning : This thesis studies the electric aspects of a linear synchronous permanent magnet generator. The generator is designed for use in a wave energy converter, which determines the fundamental requirements of the generator. The electromagnetic properties of the generator are investigated with a finite element based simulation tool. LÄS MER

  4. 4. Permanent Establishment through Related Persons : A Study on the Treatment of Related Persons under Article 5 of the OECD Model Tax Convention

    Författare :Linus Jacobsson; Mattias Dahlberg; Bertil Wiman; Mar­jaana Helminen; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; PE; permanent establishment; taxation; international taxation; tax treaty; OECD MTC; Article 5; related person; related company; related enterprise; BEPS; Finansrätt; Fiscal Law;

    Sammanfattning : Globalization, changed business practices and the developments in information technology have put pressure on the PE concept. This thesis deals with related persons and the PE concept, and the increasing tension between them.The main objective of the thesis is to analyze and define the scope of the PE concept, when applied to related persons. LÄS MER

  5. 5. Design of Rare Earth Free Permanent Magnet Generators

    Författare :Petter Eklund; Sandra Eriksson; Leijon Mats; Marcus Berg; Oskar Wallmark; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; permanent magnet generators; electrical machine design; ferrite permanent magnet; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Low speed permanent magnet (PM) synchronous generators (SGs) are commonly used in renewable energy. Rare earth (RE) PMs such as neodymium-iron-boron are a popular choice due to their high performance. LÄS MER